Unit 4 Where's my schoolbag一、单项选择(共 20 小题;共 20 分) 1. My quilt is the bed and my shoes are the bed.A. in; onB. on; underC. under; inD. on; in 2. --- Where are your shoes?--- They're the floor(地板) the room.A. in; onB. on; inC. on; underD. in; between 3. The pencil ...